CN210911540U - PVC/PCTFE/PVC composite film combination - Google Patents
PVC/PCTFE/PVC composite film combination Download PDFInfo
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- CN210911540U CN210911540U CN201921031849.XU CN201921031849U CN210911540U CN 210911540 U CN210911540 U CN 210911540U CN 201921031849 U CN201921031849 U CN 201921031849U CN 210911540 U CN210911540 U CN 210911540U
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Abstract
The utility model discloses a PVC PCTFE PVC complex film combination, it relates to a complex film. The PVC film comprises a first PVC film layer, a second PVC film layer and a PCTFE film layer, wherein two sides of the PCTFE film layer are respectively bonded with the first PVC film layer and the second PVC film layer through adhesives, the thicknesses of the first PVC film layer and the second PVC film layer are not less than 50 mu m, and the thickness of the PCTFE film layer is not less than 10 mu m. The utility model discloses a crooked problem of solution PCTFE PVC that PVC PCTFE PVC three layer construction can be fine in the thermoplastic forming process makes assembly line production go on smoothly.
Description
Technical Field
The utility model relates to a complex film, concretely relates to PVC PCTFE PVC complex film combination.
Background
The commonly used composite film PCTFE/PVC with barrier properties based on PVC is a two layer structure used as a blister material to provide moisture barrier to the product. However, the blister board of the two-layer structure is bent in the process of thermoplastic forming, so that the blister board cannot smoothly enter the carton in the next boxing process, and the operation and production of the whole production line are affected.
To sum up, the utility model designs a PVC PCTFE PVC complex film combination.
SUMMERY OF THE UTILITY MODEL
To the not enough of existence on the prior art, the utility model aims to provide a PVC PCTFE PVC complex film combination adopts the crooked problem of solution PCTFE PVC that PVC three layer construction can be fine in the thermoplastic forming process, makes assembly line production go on smoothly.
In order to achieve the above purpose, the present invention is realized by the following technical solution: a kind of
PVC/PCTFE/PVC complex film combination, including first PVC rete, second PVC rete and PCTFE rete, PCTFE rete both sides pass through the bonding agent respectively with first PVC rete, the bonding of second PVC rete, the thickness of first PVC rete, second PVC rete be no less than 50 mu m, the thickness of PCTFE rete be no less than 10 mu m.
Preferably, the first PVC film layer, the second PVC film layer and the PCTFE film layer are all transparent films.
Preferably, the PCTFE film layer is a polychlorotrifluoroethylene film.
Preferably, the first PVC film layer and the second PVC film layer are polyvinyl chloride films.
The utility model has the advantages that: the utility model discloses a replace the complex film of two-layer structure with three layer construction's complex film, the fine curved plate problem of having solved the bubble-cap board, and make the bubble-cap board pack into the extranal packing carton smoothly on the assembly line, make the assembly line move smoothly, improved production efficiency.
Drawings
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;
FIG. 1 is a schematic structural view of a conventional PCTFE/PVC composite film;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic representation of the on-machine heating and cooling direction (in the machine direction MD, PVC expansion, PCTFE) of a conventional PCTFE/PVC composite film.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Referring to fig. 1 to 3, the following technical solutions are adopted in the present embodiment: a PVC/PCTFE/PVC composite film combination comprises a first PVC film layer 1, a second PVC film layer 2, a PCTFE film layer 3 and a PCTFE film layer 3
The two sides of the film are respectively bonded with the first PVC film layer 1 and the second PVC film layer 2 through the adhesive 4, the thickness of the first PVC film layer 1 and the thickness of the second PVC film layer 2 are not less than 50 mu m, and the PCTFE film layers
3 is not less than 10 μm thick.
It is noted that the first PVC film layer 1, the second PVC film layer 2 and the PCTFE film layer 3 are all transparent films.
Notably, the PCTFE film layer 3 is a polychlorotrifluoroethylene film.
In addition, the first PVC film layer 1 and the second PVC film layer 2 are polyvinyl chloride films.
In the embodiment, a PVC film is added on the other side of the PCTFE film layer on the basis of the structure shown in FIG. 1, as shown in FIG. 2. As shown in fig. 3, the PVC film and the PCTFE film are heated in the machine running direction, and the directions of contraction and expansion are opposite after cooling, and if the composite film is of a two-layer structure, the formed bubble tray is bent due to the opposite direction of stress and thus cannot be inserted well into the outer packing carton, resulting in a stop. The specific embodiment adopts a PVC/PCTFE/PVC three-layer structure, so that the stress of contraction and expansion in different directions can be balanced, and the problem of plate bending is well solved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The PVC/PCTFE/PVC composite film combination is characterized by comprising a first PVC film layer (1), a second PVC film layer (2) and a PCTFE film layer (3), wherein two sides of the PCTFE film layer (3) are respectively bonded with the first PVC film layer (1) and the second PVC film layer (2) through adhesives (4), the thicknesses of the first PVC film layer (1) and the second PVC film layer (2) are not less than 50 mu m, and the thickness of the PCTFE film layer (3) is not less than 10 mu m.
2. The PVC/PCTFE/PVC composite film combination according to claim 1, wherein the first PVC film layer (1), the second PVC film layer (2) and the PCTFE film layer (3) are transparent films.
3. A PVC/PCTFE/PVC composite film combination according to claim 1, wherein the PCTFE film layer (3) is a polychlorotrifluoroethylene film.
4. The PVC/PCTFE/PVC composite film combination according to claim 1, wherein the first PVC film layer (1) and the second PVC film layer (2) are polyvinyl chloride films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921031849.XU CN210911540U (en) | 2019-07-03 | 2019-07-03 | PVC/PCTFE/PVC composite film combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921031849.XU CN210911540U (en) | 2019-07-03 | 2019-07-03 | PVC/PCTFE/PVC composite film combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210911540U true CN210911540U (en) | 2020-07-03 |
Family
ID=71365466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921031849.XU Active CN210911540U (en) | 2019-07-03 | 2019-07-03 | PVC/PCTFE/PVC composite film combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210911540U (en) |
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2019
- 2019-07-03 CN CN201921031849.XU patent/CN210911540U/en active Active
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